FN Archimer Export Format
PT J
TI Impact of weather conditions on Escherichia coli accumulation in oysters of the Thau lagoon (the Mediterranean, France)
BT 
AF DEROLEZ, Valerie
   SOUDANT, Dominique
   FIANDRINO, Annie
   CESMAT, Ludovic
   SERAIS, Ophelie
AS 1:1;2:2;3:1;4:1;5:1;
FF 1:PDG-ODE-LER-LERLR;2:PDG-ODE-DYNECO-VIGIES;3:PDG-ODE-LER-LERLR;4:PDG-ODE-LER-LERLR;5:PDG-ODE-LER-LERLR;
C1 IFREMER, Lab Environm Ressources Languedoc Roussillon, F-34203 Sete, France.
   IFREMER, Lab DYNECO VIGIES, Nantes 03, France.
C2 IFREMER, FRANCE
   IFREMER, FRANCE
SI SETE
   NANTES
SE PDG-ODE-LER-LERLR
   PDG-ODE-DYNECO-VIGIES
IN WOS Ifremer jusqu'en 2018
IF 2.386
TC 9
UR https://archimer.ifremer.fr/doc/00119/23049/22503.pdf
LA English
DT Article
DE ;E;coli;environmental health;food safety;shellfish;water quality
AB Aims The Thau lagoon shellfish are regularly impacted by microbial pollution of faecal origin, which cause European health standards to be exceeded and closure of the shellfish harvest. The aims of this study were to investigate the impact of weather and hydrological conditions on Escherichia coli (E. coli) accumulation factor (AF) between water and oysters and to evaluate the relevance of the use of this ratio for the purpose of sanitary risk assessment. Methods and results Water and oysters (Crassostrea gigas) were sampled simultaneously in situ during 18 months in periods of dry weather and after rainfall events. Shellfish sanitary thresholds were exceeded in both periods. The E. coli AFs measured after rainfall (median = 6) were lower than in dry weather (median = 32), suggesting different shellfish faecal contaminations were operating in this system process. Conclusion The AFs we measured appeared to be relevant markers for generating sanitary risk assessments for Thau lagoon shellfish. Significance and impact of the study The results of the study address the need to assess the relationship between water quality measures and shellfish flesh quality. This study will contribute to the elaboration of a management tool to guide local authorities in prioritizing the sources of pollution and in optimizing public investment in the watershed.
PY 2013
PD FEB
SO Journal Of Applied Microbiology
SN 1364-5072
PU Wiley-blackwell
VL 114
IS 2
UT 000313723800023
BP 516
EP 525
DI 10.1111/jam.12040
ID 23049
ER

EF